> For the complete documentation index, see [llms.txt](https://docs.expression-library.bearstudios.co.uk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.expression-library.bearstudios.co.uk/creating-an-expression-library-item/selection.md).

# Selection

## Everything Is Powered By Selection

Saved expression library items are created by your initial selection. There are two types of saved expression that are created from 3 different types of selection.

#### Type 1 Expression:

Type 1 expression relates to an expression library item that contains only a single expression with or without keyframes.

#### Type 2 Expression:

Type 2 expression relates to an expression library item that contains multiple expressions with or without keyframes.

{% hint style="info" %}
Type 2 expressions are saved inside a seperate node called multi. This is to differentiate them from others.
{% endhint %}